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When sodium hydroxide is added to red cabbage juice, the cabbage juice will change color. The cabbage indicator will turn from red/pink to blue/purple because sodium hydroxide is a strong base, causing a shift in the pH of the solution. This color change is due to the anthocyanin molecules in the red cabbage juice reacting with the change in acidity.
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Explain what happens when sodium hydroxide solution is added to ammonium hydroxide?
When sodium hydroxide solution is added to ammonium hydroxide, a double displacement reaction occurs. Ammonium hydroxide is a weak base and sodium hydroxide is a strong base. The reaction produces water, sodium hydroxide, and ammonia gas.
What happens when sodium hydroxide is added to copper oxide the colour of precipitate?
When sodium hydroxide is added to copper oxide, a blue precipitate of copper hydroxide is formed. The color of the precipitate is due to the formation of copper ions in solution.
What happens when sodium hydroxide is added to acetic acid?
When sodium hydroxide is added to acetic acid, a neutralization reaction occurs, resulting in the formation of sodium acetate and water. This reaction also releases heat. Additionally, the resulting solution will be basic due to the presence of excess hydroxide ions.
What happens when iron oxide is added to sodium hydroxide solution?
When iron oxide is added to sodium hydroxide solution, a reaction occurs to form iron(III) hydroxide and water. The iron(III) hydroxide will appear as a brownish precipitate in the solution, while water remains as a liquid.
What is the name of the salt formed when sodium hydroxide is added to nitric acid?
The salt formed when sodium hydroxide is added to nitric acid is sodium nitrate (NaNO3).
Explain what happens when sodium hydroxide solution is added to ammonium hydroxide?
When sodium hydroxide solution is added to ammonium hydroxide, a double displacement reaction occurs. Ammonium hydroxide is a weak base and sodium hydroxide is a strong base. The reaction produces water, sodium hydroxide, and ammonia gas.
What happens when sodium hydroxide is added to copper oxide the colour of precipitate?
When sodium hydroxide is added to copper oxide, a blue precipitate of copper hydroxide is formed. The color of the precipitate is due to the formation of copper ions in solution.
What happens when sodium hydroxide is added to acetic acid?
When sodium hydroxide is added to acetic acid, a neutralization reaction occurs, resulting in the formation of sodium acetate and water. This reaction also releases heat. Additionally, the resulting solution will be basic due to the presence of excess hydroxide ions.
What happens when iron oxide is added to sodium hydroxide solution?
When iron oxide is added to sodium hydroxide solution, a reaction occurs to form iron(III) hydroxide and water. The iron(III) hydroxide will appear as a brownish precipitate in the solution, while water remains as a liquid.
What happens to the indicator when hydrochloric acid is added to sodium hydroxide?
It turns from its original blue colour to red.
Does sodium hydroxide release protons when added to water?
No. Sodium hydroxide releases hydroxide ions, which actually take protons out of the solution. This qualifies sodium hydroxide as a base.
What is the name of the salt formed when sodium hydroxide is added to nitric acid?
The salt formed when sodium hydroxide is added to nitric acid is sodium nitrate (NaNO3).
What happens when sodium hydroxide is added to ammonium chloride and heated?
When sodium hydroxide is added to ammonium chloride and heated, ammonia gas is evolved as a result of the reaction between ammonium chloride and sodium hydroxide. This reaction produces water, sodium chloride, and ammonia gas.
What happens when sodium hydroxide is added to copper sulphate solution?
When sodium hydroxide is added to copper sulfate solution, a blue precipitate of copper hydroxide forms. This reaction can be summarized by the equation: CuSO4 (aq) + 2 NaOH (aq) → Cu(OH)2 (s) + Na2SO4 (aq).
What happens when sodium hydroxide is added to ferrous chloride?
When sodium hydroxide is added to ferrous chloride, a precipitation reaction occurs. This results in the formation of insoluble ferrous hydroxide, which appears as a greenish precipitate. The balanced equation for this reaction is: FeCl2 + 2NaOH → Fe(OH)2 + 2NaCl.
When sodium oxide is added to water sodium hydroxide is produced?
When sodium oxide is added to water, it reacts to form sodium hydroxide as a product. This is because sodium oxide is a basic oxide that reacts with water to produce a strong base, sodium hydroxide, along with the release of heat. This reaction is exothermic and can be used in industries for the production of sodium hydroxide.
What happens when ammonium nitrate is added to sodium hydroxide?
When ammonium nitrate is added to sodium hydroxide, a double displacement reaction occurs. Ammonium nitrate reacts with sodium hydroxide to form ammonium hydroxide and sodium nitrate. The overall reaction is NH4NO3 + NaOH -> NH4OH + NaNO3. This reaction is exothermic and can produce heat.
